A study of 35 men found that the average male waits 8.25 seconds before changing the channel during commercials. If the standard deviation is 3.50 seconds, what is the confidence level at the 95% confidence level

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.

Lines de and ab intersect at point c what is the value x? a.12b.25c.38d.52